Calgary

Calgary Zoo replacement bridge construction to begin

Work crews are doing geo-technical work for a new bridge that will be built to replace the 107-year-old Calgary Zoo bridge, which spans the Bow River.

City begins site work for new bridge to replace zoo bridge

The city is doing a geo-technical analysis in the Bow River to determine what sort of foundations will be necessary for the new 12th Street bridge, which is slated for completion by 2017. (Scott Dippel/CBC)

Anyone passing between the Calgary Zoo and Inglewood this week may have noticed a large truck, which appears to be stuck in the Bow River.

That truck isn't stuck and it isn't lost. It's in the right place as workers do a geotechnical inspection of the river to determine what kind of foundation will be needed for a new bridge.

Construction of the bridge is expected to commence in 2016. The new wider span will replace the existing bridge on 12th Street, which has been in place since 1908.

The design of the new bridge hasn't been revealed yet. The city has decided to build the replacement just to the west of the existing span.  

The budget for the new bridge is $19 million and it's expected to open in the winter of 2017.

Once the new span is open, the existing steel-truss bridge will be torn down. It is physically deteriorating and engineers have determined it would be prohibitively expensive to renovate it to keep it, even for pedestrians or cyclists.

Truck traffic has been banned from the 12th Street bridge since the 2013 flood.